mysql infobright

test.txt

1,"one,two or three",100
2,"one,two or three",1234
3,"one,two or three",3
1,"one,two or three",100
4,"one,two or three",1234
5,"one,two or three",1234
3,"one,two or three",3
6,"one,two or three",66

重复以上内容生成8320320行数据。

mysql

mysql> create table ex3(id int(11) not null auto_increment,textfield varchar(20) not null,number int(1
1) not null,index(`id`))engine=innodb default charset=latin1;
Query OK, 0 rows affected (0.39 sec)

mysql> load data infile 'd:/devEnv/Infobright/data/test.txt' into table test.ex3 fields terminated by
',' enclosed by '"';
Query OK, 8320320 rows affected (1 min 57.59 sec)
Records: 8320320  Deleted: 0  Skipped: 0  Warnings: 0

mysql> select id,sum(number) as num from test.ex3 group by id;
+----+------------+
| id | num        |
+----+------------+
|  1 |  166406400 |
|  2 | 1026727488 |
|  3 |    4992192 |
|  4 | 1026727488 |
|  5 | 2053454976 |
|  6 |  109828224 |
+----+------------+
6 rows in set (1 min 24.46 sec)

mysql> select sum(number) as num from test.ex3;
+------------+
| num        |
+------------+
| 4388136768 |
+------------+
1 row in set (4.12 sec)

mysql> select id,textfield,number from test.ex3 where id=3;

1664064 rows in set (18.06 sec)

mysql> select sum(number) from test.ex3 where id=3;
+-------------+
| sum(number) |
+-------------+
|     4992192 |
+-------------+
1 row in set (15.00 sec)

mysql> select count(*) from test.ex3;
+----------+
| count(*) |
+----------+
|  8320320 |
+----------+
1 row in set (4.92 sec)

mysql infobright

mysql> create table ex3(id int not null,textfield varchar(20) not null,number int not null)engine=brig
hthouse;
Query OK, 0 rows affected (0.08 sec)

mysql> load data infile 'd:/devEnv/Infobright/data/test.txt' into table test.ex3 fields terminated by
',' enclosed by '"';
Query OK, 8320320 rows affected (13.31 sec)
Records: 8320320  Deleted: 0  Skipped: 0  Warnings: 0

mysql> select id,sum(number) as num from test.ex3 group by id;
+----+------------+
| id | num        |
+----+------------+
|  1 |  166406400 |
|  2 | 1026727488 |
|  3 |    4992192 |
|  4 | 1026727488 |
|  5 | 2053454976 |
|  6 |  109828224 |
+----+------------+
6 rows in set (0.93 sec)

mysql> select sum(number) as num from test.ex3;
+------------+
| num        |
+------------+
| 4388136768 |
+------------+
1 row in set (0.00 sec)

mysql> select id,textfield,number from test.ex3 where id=3;

1664064 rows in set (1.63 sec)

mysql> select sum(number) from test.ex3 where id=3;
+-------------+
| sum(number) |
+-------------+
|     4992192 |
+-------------+
1 row in set (0.32 sec)

mysql> select count(*) from test.ex3;
+----------+
| count(*) |
+----------+
|  8320320 |
+----------+
1 row in set (0.04 sec)